Thill-coupling



(No Model.)

- A. A. BENNETT.

THILL COUPLING.

P t .t d J a. an e an l 1883 UNITE STATES PATENT OFFICE.

THlLL-COUPLING.

SPECIFICATION forming To all whom it may concern Be it known that I, ANTHONY A. BENNETT, a citizen of the United States, residing at West Stratford, in the county of Fair-field and State of Connecticut, have invented a new and useful Improvement in Thill-Couplings for Carriages, of which the following is a specification.

My invention relates to thill-couplings, and has for its object the construction of a coupling having adjustable taper wearing-surfaces to compensate for wear, and arranged also with a view to prevent the escape of oil and the entrance of dust; audit consists of a thilliron having a projecting taper stud or cone, and a corresponding taper bearing for the same, attached to the axle-clip, a washer of some yielding material to prevent the entrance of dust, and a bolt or screw to hold the stud and bearing in contact and take up the wear.

To more clearly understand my invention, reference is had to the drawings accompanying this specification and forming part thereof.

Figure l is a sectional view. Fig. 2 is a plan view; Fig. 3, a side elevation; Fig. 4, a modification.

Its construction and operation are as follows: a is the shaft-iron; G, enlarged head of the same; A, the cone-stud; B, cone-bearing; C, connecting-bolt; D, axle; E, axle-clip; F, thill; g, washer. The thill-iron a, head G, and cone-stud A are preferably constructed in one piece. Theiron ais attached to the thill F by the bolts 1) c d e in the usual manner. The stud A is provided with a true taper and fits the cone-seat n of the bearing B. In fitting the cone A in its seat a the space f is reserved (see Fig. 2) between the end 0 of the cone A and the bottom 12 of the cone-seat at to allow for adjustment in case of wear. Thewasher g, of leather, rubber, or felt, fits the base of the cone A and rests against the shoulder h. The facet? of the bearingB abuts against the washer g, and effectually prevents the escape of oil and the entrance of dust. The bolt C passes through the bearing B, the head j abutting the part of Letters Patent No. 270,571, dated January 16, 1883.

Application filed May 15, 1882.

(No model.)

same, and fits a threaded hole in and through the cone A, projecting through the same to receive the nut K. The bearing B, having cone-seat n, is preferably made of one piece with the axle-clip E.'(see'Fig. 3,) which passes around the axle D, and is held there in the usual manner by the cross-bar land nuts mm. The bearing-surfaces of the cone and seat are smooth to avoid friction, and their tapers are precisely alike, thus giving a'bearing-surface throughout their entire length. When necessary from long use to adjust the connection and take up the lost motion, the nut K is loosened, and the bolt C, which is screwed into the cone A, as before stated, is turned sufficient to draw the cone farther into its seat, until it finds the proper workingsurface, avoiding play or friction. The nut-Kis then tightened against the head Gr, forming a jam-nut, and as the bolt C turns with the cone A in its movements it prevents the possibility of the parts becoming disconnected. The bolt 0, instead of passing entirely through the cone, (see Fig. 4,) could extend into the cone far enough to prevent its workingout.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

In a thill-eoupling,'the combination, with the shaft-iron a, having the cone-shaped draftstud A, forming an integral part of the shaftiron shoulder h, and washer g, of the axle D,

having bearingor support B, provided with the I cone-seat n, said seat having bottom 10, and the bolt C to connect and adjust the conical surfaces, substantially as described, and for the purpose set forth.

In testimony that I claim the foregoing I have hereunto subscribed my name in the presence of two witnesses.

ANTHONY A. BENNETT. Witnesses:

RUDOLPH KORT, HERMAN Gauss. 

